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Dynamics of a multi-mode maximum entangled coherent state over an amplitude damping channel |
| A. El Allatia)b), Y. Hassounia), and N. Metwallyc)d)† |
| a Faculté des Sciences, Laboratoire de Physique Théorique URAC 13, Université Mohammed V-Agdal. Av. Ibn Battouta, B.P. 1014, Rabat, Morocco; b The Abdus Salam International Centre for Theoretical Physics, Trieste, Italy; c Mathematics Department, College of Science, University of Bahrain, Sakhir 32038, Bahrain; d Mathematics Department, Faculty of Science, South Valley University, Aswan, Egypt |
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Abstract The dynamics of the maximum entangled coherent state traveling through an amplitude damping channel is investigated. For small values of the transmissivity rate, the traveling state is very fragile to this noise channel, which suffers from the phase flip error with high probability. The entanglement decays smoothly for larger values of the transmissivity rate and speedily for smaller values of this rate. As the number of modes increases, the traveling state over this noise channel quickly loses its entanglement. The odd and even states vanish at the same value of field intensity.
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Received: 16 June 2011
Revised: 15 July 2011
Accepted manuscript online:
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PACS:
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03.67.-a
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(Quantum information)
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03.67.Hk
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(Quantum communication)
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Cite this article:
A. El Allati, Y. Hassouni, and N. Metwally Dynamics of a multi-mode maximum entangled coherent state over an amplitude damping channel 2011 Chin. Phys. B 20 110303
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